Stretch ResistantValves with loose liners, when operated frequently, flex the seats beyond fatigue limit and the seats get torn. SAAPL seats, integrally molded and bonded to hard back-up rings, have superior resistance to flexing and stretching.

Better strengthSAAPL liners possess necessary strength against high velocities of flowing fluid because of the bonding. Also, they do not buckle when sandwiched between flanges.

No Corrosion of Body material underneath the seatValves with loose liners and without the back-up expose the body material to the line fluids when the seat is torn. SAAPL liners with hard back up eliminate such a possibility.

Increased Valve LifeIn the case of valves with seats molded directly to the body, the valve is condemned if the liner is torn. SAAPL valves take second innings with the newly replaced liners.

Changeable to Suit the Service ConditionIn SAAPL valves, changing over to a liner of different polymer to suit the change in process (fluid, concentration levels and temperature) is easy and cheaper than replacing the whole valve.

Tight Shut-offThe valves will have perfect bi-directional sealing against the rated differential pressures and in vacuum applications.Disc is available in different options to suit various service media and conditions. Choice of materials will include SG iron, Stainless steel and Aluminum bronze.Wide choice of seat liner material is available to suit different service and temperature requirements. The seats are permanently engraved with the code letters given inside brackets for easy identification, to avoid mix-up and to ensure use of right material for right application.

Material of construction

S.NO

Name

Material

A1

Body

Cast Iron (Fussion Bonded Epoxy Powder Coated)

A2

Disc

Ductile Iron (Rilsan coated) / SS (CF8M)/ Aluminium Bronze

A3

Stem

SS 420

A4

Liner(Seat)

BUNA(Nitrile) / EPDM / VITON

Dimensions

Valve Size

A

ØB

C

D

E

F

G

H

J

K

L

M

N

R

W

Ød

IN

MM

Body

Seat

IN

MM

IN

MM

1

32

"32.0 [1.26]"

"36.0 [1.42]"

"151.0 [5.95]"

"59.0 [2.32]"

"140.5 [5.53]"

"14.5 [0.570]"

4

1/2-13 UNC

"98.0 [3.86]"

"90.0 [3.54]"

"10.0 [0.39]"

"70.0 [2.76]"

"32.0 [1.26]"

"0.496 0.494"

"12.60 12.55"

"0.313 0.311"

"7.95 7.90"

"18.0 [0.71]"

"28.0 [1.10]"

"80.0 [3.15]"

1-1/2

40

"32.0 [1.26]"

"36.0 [1.42]"

"151.0 [5.95]"

"59.0 [2.32]"

"140.5 [5.53]"

"14.5 [0.570]"

4

1/2-13 UNC

"98.0 [3.86]"

"90.0 [3.54]"

"10.0 [0.39]"

"70.0 [2.76]"

"32.0 [1.26]"

"0.496 0.494"

"12.60 12.55"

"0.313 0.311"

"7.95 7.90"

"18.0 [0.71]"

"28.0 [1.10]"

"80.0 [3.15]"

2

50

"42.4 [1.67]"

"46.0 [1.81]"

"165.0 [6.50]"

"60.0 [2.36]"

"140.5 [5.53]"

"14.5 [0.570]"

4

5/8-11 UNC

"120.6 [4.75]"

"90.0 [3.54]"

"10.0 [0.39]"

"70.0 [2.76]"

"32.0 [1.26]"

"0.496 0.494"

"12.60 12.55"

"0.392 0.390"

"9.95 9.90"

"34.0 [1.34]"

"37.0 [1.46]"

"92.0 [3.62]"

2-1/2

65

"45.4 [1.79]"

"49.0 [1.93]"

"185.0 [7.28]"

"70.0 [2.76]"

"153.0 [6.02]"

"14.5 [0.570]"

4

5/8-11 UNC

"139.7 [5.50]"

"90.0 [3.54]"

"10.0 [0.39]"

"70.0 [2.76]"

"32.0 [1.26]"

"0.496 0.494"

"12.60 12.55"

"0.392 0.390"

"9.95 9.90"

"47.0 [1.85]"

"40.0 [1.58]"

"109.0 [4.29]"

3

80

"45.4 [1.79]"

"49.0 [1.93]"

"192.5 [7.58]"

"80.0 [3.150]"

"157.5 [6.20]"

"14.5 [0.570]"

4

5/8-11 UNC

"152.5 [6.00]"

"90.0 [3.54]"

"10.0 [0.39]"

"70.0 [2.76]"

"32.0 [1.26]"

"0.496 0.494"

"12.60 12.55"

"0.392 0.390"

"9.95 9.90"

"66.0 [2.60]"

"40.0 [1.58]"

"125.0 [4.92]"

4

100

"51.4 [2.02]"

"55.0 [2.17]"

"228.6 [9.00]"

"90.0 [3.54]"

"176.0 [6.93]"

"14.5 [0.570]"

8

5/8-11 UNC

"190.5 [7.50]"

"90.0 [3.54]"

"10.0 [0.39]"

"70.0 [2.76]"

"32.0 [1.26]"

"0.621 0.619"

"15.77 15.72"

"0.431 0.429"

"10.95 10.90"

"92.0 [3.62]"

"42.0 [1.65]"

"147.0 [5.79]"

5

125

"55.4 [2.18]"

"59.0 [2.32]"

"254.0 [10.00]"

"112.0 [4.40]"

"191.0 [7.52]"

"14.5 [0.570]"

8

3/4-10 UNC

"215.9 [8.50]"

"90.0 [3.54]"

"10.0 [0.39]"

"70.0 [2.76]"

"32.0 [1.26]"

"0.745 0.743"

"18.92 18.87"

"0.510 0.508"

"12.95 12.90"

"118.0 [4.65]"

"46.0 [1.81]"

"177.0 [6.97]"

6

150

"55.4 [2.18]"

"59.0 [2.32]"

"285.0 [11.22]"

"128.0 [5.04]"

"202.5 [7.97]"

"14.5 [0.570]"

8

3/4-10 UNC

"241.3 [9.50]"

"90.0 [3.54]"

"10.0 [0.39]"

"70.0 [2.76]"

"32.0 [1.26]"

"0.745 0.743"

"18.92 18.87"

"0.510 0.508"

"12.95 12.90"

"146.0 [5.75]"

"46.0 [1.81]"

"202.0 [7.95]"

8

200

"59.4 [2.34]"

"63.0 [2.48]"

"343.0 [13.50]"

"160.2 [6.31]"

"243.5 [9.59]"

"15.0 [0.590]"

8

3/4-10 UNC

"298.0 [11.74]"

"150.0 [5.91]"

"12.0 [0.47]"

"102.0 [4.02]"

"45.0 [1.77]"

"0.870 0.868"

"22.10 22.05"

"0.628 0.626"

"15.95 15.90"

"195.0 [7.68]"

"48.0 [1.89]"

"257.0 [10.12]"

10

250

"67.4 [2.65]"

"71.0 [2.80]"

"406.4 [16.00]"

"197.0 [7.76]"

"273.0 [10.75]"

"15.0 [0.590]"

12

7/8- 9 UNC

"361.4 [14.23]"

"150.0 [5.91]"

"12.0 [0.47]"

"102.0 [4.02]"

"45.0 [1.77]"

"1.120 1.118"

"28.45 28.40"

"0.864 0.862"

"21.95 21.90"

"245.0 [9.65]"

"58.0 [2.28]"

"316.0 [12.44]"

12

300

"77.5 [3.05]"

"82.5 [3.25]"

"482.6 [19.00]"

"233.0 [9.17]"

"315.5 [12.42]"

"20.0 [0.790]"

12

7/8- 9 UNC

"431.8 [17.00]"

"150.0 [5.91]"

"14.0 [0.55]"

"125.0 [4.92]"

"45.0 [1.77]"

"1.244 1.242"

"31.60 31.54"

"0.943 0.941"

"23.95 23.90"

"295.0 [11.62]"

"64.0 [2.52]"

"372.0 [14.65]"

14

350

"77.6 [3.06]"

"82.5 [3.25]"

"533.4 [21.00]"

"267.0 [10.51]"

"350.0 [13.78]"

"20.0 [0.79]"

12

1/2-13 UNC

"476.2 [18.75]"

"150.0 [5.91"

"14.0 [0.55]"

"125.0 [4.92]"

"45.0 [1.77]"

"1.244 1.242"

"31.60 31.54"

"0.943 0.941"

"23.95 23.90"

"324.4 [12.77]"

"64.0 [2.52]"

"405.0 [15.94]"

16

400

"102.0 [4.02]"

"106.5 [4.19]"

"597.0 [23.50]"

"302.0 [11.89]"

"405.0 [15.94]"

"25.0 [0.99]"

16

1 - 8 UNC

"539.7 [21.25]"

"175.0 [6.89]"

"14.0 [0.55]"

"125.0 [4.92]"

"50.0 [1.97]"

"1.305 1.303"

"33.15 33.09"

"1.061 1.059"

"26.95 26.90"

"377.5 [14.86]"

"80.0 [3.15]"

"469.0 [18.46]"

18

450

"112.0 [4.41]"

"118.0 [4.65]"

"635.0 [25.00]"

"330.0 [12.99]"

"422.00 [16.61]"

"25.0 [0.99]"

16

1 1/8 - 7 UNC

"577.8 [22.75]"

"175.0 [6.89]"

"18.0 [0.71]"

"140.0 [5.51]"

"50.0 [1.97]"

"1.494 1.492"

"37.95 37.89"

"1.061 1.059"

"26.95 26.90"

"427.6 [16.84]"

"90.0 [3.54]"

"523.0 [20.59]"

20

500

"127.0 [5.00]"

"132.0 [5.20]"

"710.0 [27.95]"

"367.0 [14.45]"

"490.0 [19.29]"

"25.0 [0.99]"

20

1 1/8 - 7 UNC

"635.0 [25.00]"

"175.0 [6.89]"

"18.0 [0.71]"

"140.0 [5.51]"

"60.0 [2.36]"

"1.619 1.617"

"41.12 41.06"

"1.258 1.256"

"31.95 31.90"

"470.2 [18.51]"

"100.0 [3.94]"

"570.0 [22.44]"

24

600

"152.0 [5.98]"

"160.0 [6.30]"

"850.0 [33.46]"

"446.0 [17.56]"

"572.5 [22.54]"

"25.0 [0.99]"

20

1 1/4 - 7 UNC

"749.3 [29.50]"

"210.0 [8.27]"

"22.5 [0.89]"

"165.0 [6.50]"

"70.0 [2.76]"

"1.993 1.990"

"50.62 50.55"

"1.415 1.413"

"35.95 35.90"

"572.7 [22.55]"

"110.0 [4.33]"

"689.0 [27.13]"

Choice of materials

Disc is available in different options to suit various service media and conditions. Choice of materials will include SG iron, Stainless steel and Aluminum bronze. Wide choice of seat liner material is available to suit different service and temperature requirements. The seats are permanently engraved with the code letters given inside brackets for easy identification, to avoid mix-up and to ensure use of right material for right application.